Understanding low-threshold mode-locking at multi-GHz repetition rate

Wenbin He; Meng Pang; Philip St. J. Russell

doi:10.1038/s41377-024-01682-0

Go to Nature Website

Your Location：

Home >

Browse articles >

Understanding low-threshold mode-locking at multi-GHz repetition rate

News & Views

- Understanding low-threshold mode-locking at multi-GHz repetition rate
- Light: Science & Applications Vol. 14, Issue 1, Pages: 13-14(2025)
- Affiliations：
  
  1.Russell Centre for Advanced Lightwave Science, Shanghai Institute of Optics and Fine Mechanics and Hangzhou Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China
  2.State Key Laboratory of High Field Laser Physics and CAS Center for Excellence in Ultra-intense Laser Science, Shanghai Institute of Optics and Fine Mechanics CAS, Shanghai 201800, China
- Author bio：
  
  Wenbin He (hewenbin@siom.ac.cn)
- Funds：
- DOI：10.1038/s41377-024-01682-0
  CLC：
- Published：31 January 2025，
  
  Published Online：02 January 2025，
- Accepted：
Scan QR Code
He, W. B., Pang, M. & Russell, P. St. J. Understanding low-threshold mode-locking at multi-GHz repetition rate. Light: Science & Applications, 14, 13-14 (2025).
DOI：

He, W. B., Pang, M. & Russell, P. St. J. Understanding low-threshold mode-locking at multi-GHz repetition rate. Light: Science & Applications, 14, 13-14 (2025). DOI： 10.1038/s41377-024-01682-0.

摘要

Abstract

Continuous-wave mode-locking at multi-GHz repetition rates is achieved in an ultrashort laser cavity at critical pulse energies 100 times lower than predicted by conventional theory. The authors reveal that dynamic gain depletion and recovery between consecutive round-trips is the key factor behind a low-pulse-energy transition from Q-switched mode-locking (QSML) to continuous-wave mode-locking (CWML). As well as providing new insight into gain dynamics

the results suggest a practical route to low-threshold lasing at very high-repetition rates.

关键词

Keywords

references

Haus, H. A. Mode-locking of lasers. IEEE J. Sel. Top. Quantum Electron. 6 , 1173–1185 (2000)..

Grelu, P. & Akhmediev, N. Dissipative solitons for mode-locked lasers. Nat. Photonics 6 , 84–92 (2012)..

Hönninger, C. et al. Q -switching stability limits of continuous-wave passive mode locking. J. Opt. Soc. Am. B 16 , 46–56 (1999)..

Chen, X. W. et al. Dynamic gain driven mode-locking in GHz fiber laser. Light Sci. Appl. 13 , 265 (2024)..

Amrani, F. et al. Passive harmonic mode locking of soliton crystals. Opt. Lett. 36 , 4239–4241 (2011)..

Keller, U. Recent developments in compact ultrafast lasers. Nature 424 , 831–838 (2003)..

Kerse, C. et al. Ablation-cooled material removal with ultrafast bursts of pulses. Nature 537 , 84–88 (2016)..

Steinmetz, T. et al. Laser frequency combs for astronomical observations. Science 321 , 1335–1337 (2008)..

Kippenberg, T. J. et al. Dissipative Kerr solitons in optical microresonators. Science 361 , eaan8083 (2018)..

He, W. et al. Sub-100-fs 1.87 GHz mode-locked fiber laser using stretched-soliton effects. Optica 3 , 1366–1372 (2016)..

Views

Downloads

CSCD

Alert me when the article has been cited

Submit

Tools

Publicity Resources

No data

Related Author

No data

Related Institution

No data

⁰